Homework Answers
a. The rate law for the rate of formation of [HR] in terms of the species and rate constants is equals to
Rate of formation of [HR], d[HR]/dt = Kf [H] [R]
b. The initial rate of formation of [HR], d[HR]/dt = Kf [H] [R] = 1*0.0005*0.2 = 0.0001 mM/sec
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3) Consider an elementary reversible reaction that describes the bind ing of a hormone (H) to...
2. (20 points) Consider the following set of three reversible elementary reactions: R1: O2 + M...
2. (20 points) Consider the following set of three reversible elementary reactions: R1: O2 + M + 0+0+M R2: O2 + OH O3 R3: O+O3 + O2 + O2 Write expressions for the time-rate-of-change of molar concentration of the four species O, O2, O3, and M for this reaction set. Your expressions should be in terms of the molar concentrations of the four species involved in the reactions, and the forward and reverse rate coefficients for the three reactions.
Give an example of a reversible reaction and an irreversible reaction. 2. Explain how they are...
Give an example of a reversible reaction and an irreversible reaction. 2. Explain how they are fundamentally different. Equilibrium is a dynamic process. Explain what this means. 3. Determine whether the following statements are true or false. Correct the false statements. a. When a chemical reaction reaches equilibrium, the reaction completely stops. b. When a chemical reaction reaches equilibrium, the forward reaction stops and the reverse reaction begins. 4. Determine whether the following statements are true or false. Correct the...
An exothermic elementary reversible isomerisation reaction of A B in liquid phase is carried out adiabatically...
An exothermic elementary reversible isomerisation reaction of A B in liquid phase is carried out adiabatically in a CSTR. Pure A is fed to the reactor at a concentration of 5 mollitre and feed rate of 500 mol/min. As a researcher you need to analyze the effect of different inlet temperature to the rate of reaction. The inlet temperature is varied at 50°C, 100°C and another two inlets temperature in between 70°C to 90°C. Perform your calculation based on energy...
An aqueous phase reversible reaction ? ⇌ ? + ? is carried out in a batch...
An aqueous phase reversible reaction ? ⇌ ? + ? is carried out in a batch reactor. The forward reaction is first order wrt A and the backward reaction is first order wrt each component. Initial concentration of A is 1 mol/litre and no R and S are present initially. Derive an expression for ?? ⁄??. What is the maximum allowable conversion in the reactor? If this reaction happens in gas phase (constant pressure), derive an expression for ?? ⁄??....
The elementary, reversible gas phase reaction A B is to be carried out in a CSTR with heat exchange. Pure A is fed to t...
The elementary, reversible gas phase reaction A B is to be carried out in a CSTR with heat exchange. Pure A is fed to the reactor. The heat exchange coil in the reactor is maintained at 400K. The rate coefficient is known at 400K, but heat of reaction is unknown. Data: k1(400K) = 0.001 s.! V-1000L To=350K R-831 J/mol K h 5 mol's UA 1000 J/K Kea (450K-1 A) Calculate the conversion (X) if the steady state CSTR is operated...
Consider the dimerization 2A S A2, with forward rate constant kf and reverse rate constant kr. (a) Derive an expression...
Consider the dimerization 2A S A2, with forward rate constant kf and reverse rate constant kr. (a) Derive an expression for "in terms of the rate constants, [A], and the total concentration of dt protein, [A]o[A]+2[A2] (b) The equation you derived above can be used to show that k8kk,[A]cot T2 where T is a quantity with units of time that depends the data provided below, calculate the rate constants formation of hydrogen-bonded dimers of 2-pyridone: on k, ki, and [A]ot....
A2. Chemical Kinetics (20 marks) MBr2 Br Br M k1 |(1) k2. Br H2 HBr H k2,r (2) k3,f HBr2 HBr Br (3) + Experimentally me...
A2. Chemical Kinetics (20 marks) MBr2 Br Br M k1 |(1) k2. Br H2 HBr H k2,r (2) k3,f HBr2 HBr Br (3) + Experimentally measured rate expression for [HBr] given as below: d [HBr] A1exp[H2] [Br2]1/2 HBr 1+ A2exp TBr2 dt Consider the above elementary reactions mechanism proposed by Bodenstein to explain their experimental findings of the reaction rate of HBr. Reactions 1 and 2 are bi-directional (forward and reverse) while reaction 3 is uni-directional (forward only) as written....
k1f M Br2 Br Br M kir (1) + k2,f BrH2 HBr H k2,r (2) + + ka,f HBr Br HBr2 (3) + + Experimentally measured rate expressi...
k1f M Br2 Br Br M kir (1) + k2,f BrH2 HBr H k2,r (2) + + ka,f HBr Br HBr2 (3) + + Experimentally measured rate expression for [HBr] given as below: d [HBr] Aexp [H2] [Br2]1/2 [HBr] 1+ A2expBr2 dt Consider the above elementary reactions mechanism proposed by Bodenstein to explain their experimental findings of the reaction rate of HBr. Reactions 1 and 2 are bi-directional (forward and reverse) while reaction 3 is uni-directional (forward only) as written....
Part 1 please! Consider the liquid reaction: A + 2B → 2C + D Rate units:...
Part 1 please!
Consider the liquid reaction: A + 2B → 2C + D Rate units: moles/cm3-min I. Write the reaction rate r in terms of concentrations C, and rate constant k if the reaction were elementary as written? o For this case, derive: -TA and kA o What are the units for kA? o Derive the molar species balance for A, in terms of XA, for a batch reactor charged with an equimolar mixture of A and B; i.e....
Open with Google Docs The reaction to the right describes the isomerization of dihydroxyacetone phosphate (DHAP)...
Open with Google Docs The reaction to the right describes the isomerization of dihydroxyacetone phosphate (DHAP) to glyceraldehyde-3-phosphate (GAP). It is a chemical equilibrium reaction that happens in the biochemical pathway that is part of the metabolism of glucose. The chemical equilibrium can be treated much like the dynamic equilibrium observed for the vapor pressure. Answer the following questions about this reaction: OH DHAP GAP GAP and the kinetics of GAP DHAP are first order processes. What are the rate...
2. (20 points) Consider the following set of three reversible elementary reactions: R1: O2 + M + 0+0+M R2: O2 + OH O3 R3: O+O3 + O2 + O2 Write expressions for the time-rate-of-change of molar concentration of the four species O, O2, O3, and M for this reaction set. Your expressions should be in terms of the molar concentrations of the four species involved in the reactions, and the forward and reverse rate coefficients for the three reactions.
An exothermic elementary reversible isomerisation reaction of A B in liquid phase is carried out adiabatically in a CSTR. Pure A is fed to the reactor at a concentration of 5 mollitre and feed rate of 500 mol/min. As a researcher you need to analyze the effect of different inlet temperature to the rate of reaction. The inlet temperature is varied at 50°C, 100°C and another two inlets temperature in between 70°C to 90°C. Perform your calculation based on energy...
The elementary, reversible gas phase reaction A B is to be carried out in a CSTR with heat exchange. Pure A is fed to the reactor. The heat exchange coil in the reactor is maintained at 400K. The rate coefficient is known at 400K, but heat of reaction is unknown. Data: k1(400K) = 0.001 s.! V-1000L To=350K R-831 J/mol K h 5 mol's UA 1000 J/K Kea (450K-1 A) Calculate the conversion (X) if the steady state CSTR is operated...
Consider the dimerization 2A S A2, with forward rate constant kf and reverse rate constant kr. (a) Derive an expression for "in terms of the rate constants, [A], and the total concentration of dt protein, [A]o[A]+2[A2] (b) The equation you derived above can be used to show that k8kk,[A]cot T2 where T is a quantity with units of time that depends the data provided below, calculate the rate constants formation of hydrogen-bonded dimers of 2-pyridone: on k, ki, and [A]ot....
A2. Chemical Kinetics (20 marks) MBr2 Br Br M k1 |(1) k2. Br H2 HBr H k2,r (2) k3,f HBr2 HBr Br (3) + Experimentally measured rate expression for [HBr] given as below: d [HBr] A1exp[H2] [Br2]1/2 HBr 1+ A2exp TBr2 dt Consider the above elementary reactions mechanism proposed by Bodenstein to explain their experimental findings of the reaction rate of HBr. Reactions 1 and 2 are bi-directional (forward and reverse) while reaction 3 is uni-directional (forward only) as written....
k1f M Br2 Br Br M kir (1) + k2,f BrH2 HBr H k2,r (2) + + ka,f HBr Br HBr2 (3) + + Experimentally measured rate expression for [HBr] given as below: d [HBr] Aexp [H2] [Br2]1/2 [HBr] 1+ A2expBr2 dt Consider the above elementary reactions mechanism proposed by Bodenstein to explain their experimental findings of the reaction rate of HBr. Reactions 1 and 2 are bi-directional (forward and reverse) while reaction 3 is uni-directional (forward only) as written....
Part 1 please!
Consider the liquid reaction: A + 2B → 2C + D Rate units: moles/cm3-min I. Write the reaction rate r in terms of concentrations C, and rate constant k if the reaction were elementary as written? o For this case, derive: -TA and kA o What are the units for kA? o Derive the molar species balance for A, in terms of XA, for a batch reactor charged with an equimolar mixture of A and B; i.e....
Open with Google Docs The reaction to the right describes the isomerization of dihydroxyacetone phosphate (DHAP) to glyceraldehyde-3-phosphate (GAP). It is a chemical equilibrium reaction that happens in the biochemical pathway that is part of the metabolism of glucose. The chemical equilibrium can be treated much like the dynamic equilibrium observed for the vapor pressure. Answer the following questions about this reaction: OH DHAP GAP GAP and the kinetics of GAP DHAP are first order processes. What are the rate...
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